usr/src/lib/libbc/inc/include/sys/setjmp.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*      from UCB 4.1 83/05/03   */
  23
  24 #pragma ident   "%Z%%M% %I%     %E% SMI"
  25
  26 #ifndef __sparc_setjmp_h
  27 #define __sparc_setjmp_h
  28
  29 /*
  30  * onsstack,sigmask,sp,pc,npc,psr,g1,o0,wbcnt (sigcontext).
  31  * All else recovered by under/over(flow) handling.
  32  */
  33 #define _JBLEN  9
  34
  35 typedef int jmp_buf[_JBLEN];
  36
  37 /*
  38  * One extra word for the "signal mask saved here" flag.
  39  */
  40 typedef int sigjmp_buf[_JBLEN+1];
  41
  42 int     setjmp(/* jmp_buf env */);
  43 int     _setjmp(/* jmp_buf env */);
  44 int     sigsetjmp(/* sigjmp_buf env, int savemask */);
  45 void    longjmp(/* jmp_buf env, int val */);
  46 void    _longjmp(/* jmp_buf env, int val */);
  47 void    siglongjmp(/* sigjmp_buf env, int val */);
  48
  49 /*
  50  * Routines that call setjmp have strange control flow graphs,
  51  * since a call to a routine that calls resume/longjmp will eventually
  52  * return at the setjmp site, not the original call site.  This
  53  * utterly wrecks control flow analysis.
  54  */
  55 #pragma unknown_control_flow(sigsetjmp, setjmp, _setjmp)
  56
  57 #endif  /* !__sparc_setjmp_h */